Q:

A book is sold at three successive discounts of 20%, 20% and 10%. What is the net discount (in percentage)?

A) 42.4 B) 48.6
C) 44.2 D) 40.4
 
Answer & Explanation Answer: A) 42.4

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Q:

If Rajan purchase 21 pens for Rs 20 and sell all the pens at the rate of 20 pens for Rs 21, then what will be the profit percentage?

A) 12.5 B) 13.33
C) 10.25 D) 16.66
 
Answer & Explanation Answer: C) 10.25

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Q:

The simple interest on a sum of money is 16/25 of the principal. The number of years is equal to the rate of interest per annum. What is the rate (in percentage) of interest per annum?

A) 4 B) 16
C) 8 D) 12
 
Answer & Explanation Answer: C) 8

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Q:

What will be the average of all the prime numbers before 19?

A) 8.28 B) 11.5
C) 5.34 D) 9.63
 
Answer & Explanation Answer: A) 8.28

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Q:

X and Y are two alloys which are prepared by mixing zinc and aluminium in the ratio of 1 : 4 and 11 : 8 respectively. If equal quantities of alloys are melted to form a third alloy Z then what is the ratio of zinc and aluminium in alloy Z?

 

A) 32:47 B) 37:58
C) 37:95 D) 74:95
 
Answer & Explanation Answer: B) 37:58

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Q:

The income of P, Q and R are in the ratio of 5 : 4 : 3 respectively and their expenses are in the ratio of 6 : 5 : 4 respectively. If P saves Rs 4000 out of an income of Rs 10000, then what will be the saving (in Rs) of Q?

 

A) 2500 B) 3000
C) 4500 D) 2000
 
Answer & Explanation Answer: B) 3000

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Q:

If the price of sugar is decreased by 18%, then a person can buy 16.2 kg sugar more for Rs 4500. What will be the new price (in Rs) of sugar per kg?

A) 40 B) 60
C) 45 D) 50
 
Answer & Explanation Answer: D) 50

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Q:

The base and hypotenuse of a right angled triangle is 12 cm and 5 cm respectively. Find the circum-radius (in cm) of the triangle.

 

A) 5 B) 6
C) 6.5 D) 7
 
Answer & Explanation Answer: C) 6.5

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